Common Core State Standards for Kindergarten: Number and Operations in Base Ten

April 26, 2013   |   Filed Under Common Core State Standards: Mathematics   |   Comments Off on Common Core State Standards for Kindergarten: Number and Operations in Base Ten

Work with numbers 11-19 to gain foundations for place value.

CCSS.Math.Content.K.NBT.A.1 

Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings, and record each composition or decomposition by a drawing or equation (such as 18 = 10 + 8); understand that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, or nine ones.

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